Nuclear anyone?

[gsganzer]

Hydrogen could be generated from the energy produced by fusion, however fusion converts hydrogen to helium.

Sorry, I was meaning making hydrogen via electrolysis from the electricity.

 

[KennyG]

I always have trouble understanding the push for hydrogen. If you need electricity to produce hydrogen, why not just use electricity. If you think developing an electric car charging network is hard, imagine a liquid hydrogen system. Refueling stations would require massive high pressure tanks. Hydrogen is much harder to turn into a liquid than gases like propane, requiring very cold temperatures. I think the current processes use 30 to 50 % of the hydrogen energy to convert it to a liquid. So a hydrogen fuel cell car is going to be not much more than half as efficient as an electric car.

 

[Chewwy]

I always have trouble understanding the push for hydrogen. If you need electricity to produce hydrogen, why not just use electricity. If you think developing an electric car charging network is hard, imagine a liquid hydrogen system. Refueling stations would require massive high pressure tanks. Hydrogen is much harder to turn into a liquid than gases like propane, requiring very cold temperatures. I think the current processes use 30 to 50 % of the hydrogen energy to convert it to a liquid. So a hydrogen fuel cell car is going to be not much more than half as efficient as an electric car.

All good points. Concentrated hydrogen in the presence of oxygen will also self ignite.

 

[sd455dan]

I always have trouble understanding the push for hydrogen. If you need electricity to produce hydrogen, why not just use electricity. If you think developing an electric car charging network is hard, imagine a liquid hydrogen system. Refueling stations would require massive high pressure tanks. Hydrogen is much harder to turn into a liquid than gases like propane, requiring very cold temperatures. I think the current processes use 30 to 50 % of the hydrogen energy to convert it to a liquid. So a hydrogen fuel cell car is going to be not much more than half as efficient as an electric car.

EXACTLY

The Toyota Mirai is a TOTAL failure cost wise about $160 to fill at a station

Almost $200 to drive 300 miles
I will keep my diesel gas and EV over this thing

 

[gsganzer]

I always have trouble understanding the push for hydrogen. If you need electricity to produce hydrogen, why not just use electricity. If you think developing an electric car charging network is hard, imagine a liquid hydrogen system. Refueling stations would require massive high pressure tanks. Hydrogen is much harder to turn into a liquid than gases like propane, requiring very cold temperatures. I think the current processes use 30 to 50 % of the hydrogen energy to convert it to a liquid. So a hydrogen fuel cell car is going to be not much more than half as efficient as an electric car.

I think the part your missing is the nuclear, especially fusion. If you have a nuclear plant, fission or fusion, those plants are most efficient running at near 100%.

During the off-time, when they produce more than consume, the excess electricity can be used for electrolysis to make hydrogen (or any electric generating process, wind, solar etc. when it has excess power). The hydrogen can then be used for the mobile needs, like cars, tractors, remote needs etc. Or simply stored as stored energy in a compressed tank (like a battery). Part of the difference is that use or wasted hydrogen impacts nothing to the global warming equation, because it's combustion or waste does nothing as a global warming gas.